[libvirt] [PATCH 0/2] qemu: Rework CD/DVD changing

[Li Wei]

Hi Michal, Daniel

It seems there is something wrong with the 2/2 part of this patchset.
When I do an "change-media" command in virsh, it doesn't do any better
than before, but even worse(I must to wait 5 secs to see the error).

I'm not family with libvirt, just add some log things in the qemu_hotplug.c
and found the tray_status never change to open, but with michal's original
patch (which do active poll on tray_status), I can do "change-media" successfully
every time.

IMHO, there must be some bug in the processing of qemu tray change.

Thanks,
Wei


On 01/25/2013 08:20 PM, Michal Privoznik wrote:
> The first patch is bare bug fix (without any bug reported though).
> The second is again a bug fix, but not so easy to spot. Basically, when we
> change a media, we should issue 'eject' first, then wait until the tray gets
> open, after which we can finally issue 'change' command. Even for bare 'eject'
> we ought to check status, shouldn't we?
> 
> Michal Privoznik (2):
>   qemu_monitor: Fix tray-open attribute in query-block
>   qemu_hotplug: Rework media changing process
> 
>  src/qemu/qemu_hotplug.c      | 51 +++++++++++++++++++++++++++++++++++++++++---
>  src/qemu/qemu_monitor_json.c |  2 +-
>  src/qemu/qemu_monitor_text.c |  6 +++---
>  3 files changed, 52 insertions(+), 7 deletions(-)
>